%%
%% The LaTeX Companion, 3ed
%%
%% Example 8-2-6 on page I-589 in "Resizing to a given size".
%%
%% Copyright (C) 2022 Frank Mittelbach
%%
%% It may be distributed and/or modified under the conditions
%% of the LaTeX Project Public License, either version 1.3c
%% of this license or (at your option) any later version.
%%
%% See https://www.latex-project.org/lppl.txt for details.
%%

\documentclass{tlc3exa}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{183.0pt}
\newcommand\HR{\rule{1em}{0.4pt}}
%StartShownPreambleCommands
\usepackage{graphics} % or graphicx
%StopShownPreambleCommands

\begin{document}
\HR\begin{tabular}{lll}
      Köln & Lyon    & Oxford \\
      Rhein   & Rhône & Thames
 \end{tabular}\HR\par\bigskip
\HR\resizebox{2cm}{.5cm}{%
    \begin{tabular}{lll}
      Köln & Lyon    & Oxford \\
      Rhein  & Rhône & Thames
    \end{tabular}}\HR
\end{document}
